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Journal of Mountain Science

, Volume 15, Issue 10, pp 2266–2275 | Cite as

Source tectonic dynamics features of Jiuzhaigou Ms 7.0 earthquake in Sichuan Province, China

  • Shu-jian Yi
  • Chun-hao Wu
  • Yu-sheng Li
  • Chao Huang
Article
  • 47 Downloads

Abstract

On August 8, 2017, a Ms 7.0 earthquake occurred 5 km to the west of Jiuzhaigou National Park, causing 25 deaths and injuring 525. The objective of this study was to explore the seismogenic fault of the earthquake and tectonic dynamics of the source rupture. Field investigations, radon activity tests, remote sensing interpretations, and geophysical data analyses were carried out immediately after the earthquake. The Jiuzhaigou earthquake occurred at the intersection of the northern margin of the Minshan uplift belt and the south part of the Wenxian–Maqin fault in the south margin of the West Qinling geosyncline. There are two surface rupture zones trending northwest (NW), which are ground coseismic ruptures caused by concealed earthquake faults. The rupture on the southwest is the structure triggering the earthquake, along the Jiuzhaitiantang–Epicenter–Wuhuahai. The other one on the northeast (Shangsizhai–Zhongcha–Bimang) is a reactivation and extension of the secondary fault trending NW. The source rupture of this earthquake is a strike-slip shear fracture associated with the fault plane trending NW 331° and steeply dipping 75°, which is continuously expanding at both ends. The tectonic dynamics process of the source rupture is that the “Jiuzhaigou protrusion” is left-lateral sheared along the seismogenic fault in the NW direction. Finally, the Maqin fault and the arc fault system at the top of the “Wenxian protrusion” will be gradually broken through sometime in far future, as well as earthquaketriggered landslides will be further occurred along the narrow corridor between the seismogenic faults. The research results revealed the basic geological data and tectonic dynamic mechanism in this earthquake.

Keywords

Jiuzhaigou Earthquake Surface rupture Tectonic dynamics Radon activity 

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Notes

Acknowledgements

This research was financially supported by the Open Research Fund from the Key Laboratory of Mountain Hazards and Earth Surface Process (Chinese Academy of Sciences) (Grant No. KLMHESP-17-06), the Independent Research Fund from the State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology) (Grant No. 40100-00002219). Deep appreciation goes to LIU Kai and Dr TANG Jie for their suggestion and assistance, as well as LetPub (www.letpub.com) for its linguistic assistance during the preparation of this manuscript. We thank anonymous referees and editors for their constructive comments on an earlier version of this paper.

References

  1. China Earthquake Administration (2017) Comprehensive Atlas of Jiuzhaigou Ms 7.0 Earthquake in Aba Prefecture, Sichuan Province. https://doi.org/www.csi.ac.cn/manage/eqDown/05LargeEQ/201708082119M7.0/zonghe.html (Accessed on 11 August 2017)Google Scholar
  2. China Earthquake Networks Center (2017) China Earthquake Catalog. https://doi.org/www.csndmc.ac.cn/newweb/(Accessed on 20 August 2017)Google Scholar
  3. Daryono MR, Tohari A (2016) Surface Rupture and Geotechnical Features of The July 2, 2013 Tanah Gayo Earthquake. Indonesian Journal on Geoscience, 3 (2): 95–105.  https://doi.org/10.17014/ijog.3.2.95-105 Google Scholar
  4. Drolet JP, Martel R, Poulin P, et al. (2013) An approach to define potential radon emission level maps using indoorradon concentration measurements and radiogeochemical data positive proportion relationships. Journal of Environmental Radioactivity 124: 57–67.  https://doi.org/10.1016/j.jenvrad.2013.04.006 CrossRefGoogle Scholar
  5. Drolet, JP, Martel, R. (2016) Distance to faults as a proxy for radon gas concentration in dwellings. Journal of Environmental Radioactivity 152: 8–15.  https://doi.org/10.1016/j.jenvrad.2015.10.023 CrossRefGoogle Scholar
  6. Fairhurst C (1964) Measurement of in–situ rock stresses. with particular reference to hydraulic fracturing. Rock Mech.; (United States), 2.Google Scholar
  7. Guo H, Jiang WL, Xie XS (2017) Multiple faulting events revealed by trench analysis of the seismogenic structure of the 1976 Ms 7.1 Luanxian earthquake, Tangshan Region, China. Journal of Asian Earth Sciences 147: 424–438.  https://doi.org/10.1016/j.jseaes.2017.06.004 CrossRefGoogle Scholar
  8. Hua W, Chen ZL, Li ZX, et al. (2009) Seismic triggering and the aftershock distribution of the Wenchuan M 8.0 Earthquake. Earthquake 29(1):33–39. (In Chinese)  https://doi.org/10.3969/j.issn.1000-3274.2009.01.005 Google Scholar
  9. Hu JH, Fu LY, Sun WJ (2017) A study of the Coulomb stress and seismicity rate changes induced by the 2008 Mw 7.9 Wenchuan earthquake, SW China. Journal of Asian Earth Sciences 135: 303–319.  https://doi.org/10.1016/j.jseaes.2016.12.048 CrossRefGoogle Scholar
  10. Jiang LW, Wang ST, Wang YS, et al. (2005) Active tectonic system and its control of seismic activity in the east part of the northwest fault block of Sichuan, China. Journal of Chengdu University of Technology (Science & Technoloy Edition) 32(4): 340–344. (In Chinese)  https://doi.org/10.3969/j.issn.1671-9727.2005.04.002 Google Scholar
  11. Kirby E, Whipple KX, Burchfiel BC, et al. (2000) Neotectonics of the Min Shan, China: implications for mechanisms driving Quaternary deformation along the eastern margin of the Tibetan Plateau. GSA Bulletin 112(3): 375–393.  https://doi.org/10.1130/0016-7606(2000)112<375:NOTMSC>2.0.CO;2 CrossRefGoogle Scholar
  12. Lin AM, Sano M, Yan B (2015) Co–seismic surface ruptures produced by the 2014 Mw 6.2 Nagano earthquake, along the Itoigawa–Shizuoka tectonic line, central Japan. Tectonophysics 656: 142–153.  https://doi.org/10.1016/j.tecto.2015.06.018 CrossRefGoogle Scholar
  13. Lin AM (2017) Structural features and seismotectonic implications of coseismic surface ruptures produced by the 2016 Mw 7.1 Kumamoto earthquake. Journal of Seismology 21(5): 1079–1100.  https://doi.org/10.1007/s10950-017-9653-5 CrossRefGoogle Scholar
  14. Li YS, Huang RQ (2008) Engineering geological assessments of reconstruction sites for cities and towns destroyed by Wenchuan earthquake. Journal of Engineering Geology 16 (6): 764–773. (In Chinese)  https://doi.org/10.3969/j.issn.1004-9665.2008.06.006 Google Scholar
  15. Mohammad R Ghassemi (2016) Surface ruptures of the Iranian earthquakes 1900–2014: Insights for earthquake fault rupture hazards and empirical relationships. Earth–Science Reviews 156: 1–13.  https://doi.org/10.1016/j.earscirev.2016.03.001 Google Scholar
  16. Pan JW, Li HB, Si JL, et al. (2014) Rupture process of the Wenchuan earthquake (Mw 7.9) from surface ruptures and fault striations characteristics. Tectonophysics 619–620: 13–28.  https://doi.org/10.1016/j.tecto.2013.06.028 CrossRefGoogle Scholar
  17. Wang YS (2002) Application of radon measurement to the study of regional tectonic stability. Mountain Research 20(4):505–508. (In Chinese)  https://doi.org/10.16089/j.cnki.1008-2786.2002.04.021 Google Scholar
  18. Wang YS, Huang RQ, Luo YH, et al. (2011) The genetic mechanism of Wenchuan Earthquake. Journal of Mountain Science 8(2): 336–344.  https://doi.org/10.1007/s11629-011-2096-5 CrossRefGoogle Scholar
  19. Wu CH, Cui P, Li YS, et al. (2018) Seismogenic fault and topography control on the spatial patterns of landslides triggered by the 2017 Jiuzhaigou earthquake. Journal of Mountain Science 15(4): 793–807.  https://doi.org/10.1007/s11629-017-4761-9 CrossRefGoogle Scholar
  20. Xie ZJ, Zheng Y, Liu CL, et al. (2017) An integrated analysis of source parameters, seismogenic structure, and seismic hazards related to the 2014 Ms 6.3 Kangding earthquake, China. Tectonophysics 712–713: 1–9.  https://doi.org/10.1016/j.tecto.2017.04.030 CrossRefGoogle Scholar
  21. Yalım HA, Sandıkcıoglu A, Ertugrul O, et al. (2012) Determination of the relationship between radon anomalies and earthquakes in well waters on the Aksehir–Simav Fault System in Afyonkarahisar province, Turkey. Journal of Environmental Radioactivity 110: 7–12.  https://doi.org/10.1016/j.jenvrad.2012.01.015 CrossRefGoogle Scholar
  22. Yi GX, Long F, Liang MJ, et al. (2017) Focal mechanism solutions and seismogenic structure of the 8 August 2017 M 7.0 Jiuzhaigou earthquake and its aftershocks, northern Sichuan. Chinese Journal of Geophysics 60(10):4083–4097. (In Chinese)  https://doi.org/10.6038/cjg20171033 Google Scholar
  23. Zhu SB, Miao M (2015) How Did the 2013 Lushan Earthquake (Ms = 7.0) Trigger its Aftershocks? Insights from Static Coulomb Stress Change Calculations. Pure & Applied Geophysic 172(10): 2481–2494.  https://doi.org/10.1007/s00024-015-1064-3 CrossRefGoogle Scholar
  24. Zhang ZY, Wang ST, Wang LS, et al. (2016) Analysis principle of engineering geology. Beijing, China. Geological Publishing House. pp 78–80. (In Chinese)Google Scholar

Copyright information

© Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.State Key Laboratory of Geohazard Prevention and Geoenvironment ProtectionChengdu University of TechnologyChengduChina
  2. 2.Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengduChina
  3. 3.University of Chinese Academy of ScienceBeijingChina

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